Navigation system for a vehicle

摘要: The invention relates to a navigation system for vehicle which allows route planning depending on the current traffic volume. For this purpose, is provided with an evaluation unit detecting one of and topographical data, example average speed vehicle. This infoimation transmitted other systems in network. A receiving can be used receive jam information from systems, thereby allowing automatic precise takes into consideration jams does not require stationary detectors. inventive especially suitable use developing countries.